Combined filter, regulator, and lubricator for the flow of compressed air



FIG. 1 is a side elevation view of a combined filter, regulator, and lubricator for the flow of compressed air, showing our new design, the opposite side being a mirror image of that shown;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right end elevation view thereof; and

FIG. 5 is a left end elevation view thereof. 

The ornamental design for combined filter, regulator, and lubricator for the flow of compressed air, as shown and described. 